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Citroen C 15 vs Citroen C4: reliability comparison

MOT pass rates, common faults and mileage compared from real UK MOT data.

Citroen C 15
62%
MOT pass rate · 92 vehicles
Citroen C4
72%
MOT pass rate · 236,872 vehicles
More reliable
Verdict: On MOT pass rate, the Citroen C4 is the more reliable of the two — 72% pass first time versus 62%. It's one signal among several; check the full breakdown below.

Head to head

Measure Citroen C 15 Citroen C4
MOT pass rate 62% 72% ✓
MOT failure rate 38% 28% ✓
Faults & advisories per test 2.8 2.0 ✓
Dangerous-fault share 0% ✓ 3%
Average mileage 117,893 mi 100,675 mi
Sample size (vehicles) 92 236,872

Most common faults

Citroen C 15

  1. Brakes imbalanced across an axle (3.7.B.5b)
  2. Parking brake: efficiency below requirements (3.7.B.7)
  3. Nearside Front Brake hose slightly deteriorated (3.6.B.4d)
  4. Nearside Stop lamp not working (1.2.1b)
  5. Offside Headlamp aim too low (1.8)
  6. Offside Front Brake hose slightly deteriorated (3.6.B.4d)

Citroen C4

  1. Offside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  2. Nearside Front Tyre worn close to legal limit/worn on edge (5.2.3 (e))
  3. Offside Front Tyre worn close to the legal limit (4.1.E.1)
  4. Nearside Front Tyre worn close to the legal limit (4.1.E.1)
  5. Nearside Rear Tyre worn close to the legal limit (4.1.E.1)
  6. Nearside Rear Tyre worn close to legal limit/worn on edge (5.2.3 (e))

Reliability FAQ

On MOT pass rate, the Citroen C4 is the more reliable of the two — 72% pass first time versus 62%. It's one signal among several; check the full breakdown below.

Full Citroen C 15 report Full Citroen C4 report Most reliable cars

Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.